Child&#39;s musical mobile music box cover



FIG. 1 is a front perspective view of a child's musical mobile music box cover showing my new design with a child's mobile music box shown in broken lines for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a top plan view of the musical box cover;

FIG. 3 is a front elevational view thereof;

FIG. 4 is the right side elevational view thereof;

FIG. 5 is the left elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a child's musical mobile music box cover, as shown. 